code: def __init__(
      self,
      msg: str = "Data does not contain the specified treatment.",
      *args: List[Any],
      **kwargs: Dict[str, Any],
  ) -> None:
      super().__init__(msg, *args, **kwargs)
  
file_path: fklearn/src/fklearn/exceptions/exceptions.py
imports: from typing import Any, Dict, List
label_desc: Use image node_id 1 to create a new MissingTreatmentError object from inherited base classes: Exception with example: obj = MissingTreatmentError(msg)